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| @vic Features * Low dropout voltage * Load regulation: 0.05% typical * Trimmed current limit * On-chip thermal limiting * Three-terminal adjustable or fixed 2.5V, 2.85V, 3.3V, 5V * Surface mount package SOT-223 AV1117 Outline Dimension Applications * Active SCSI terminators * High efficiency linear regulators * Portable Top/Notebook computers * Post regulators for switching supplies * Battery chargers * 5V to 3.3V linear regulators * Motherboard clock supplies Description The AV1117 and AV1117-2.5, -2.85, -3.3 and -5 are low dropout three-terminal regulators with 1A output current capability. These devices have been optimized for low voltage where transient response and minimum input voltage are critical. The 2.85V version is designed specifically to be used in Active Terminators for SCSI bus. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload and ambient temperatures that would create excessive junction temperatures. Unlike PNP type regulators where up to 10% of the output current is wasted as quiescent current, the quiescent current of the AV1117 flows into the load, increasing efficiency. The AV1117 series regulators are offered in three-pin surface mount package SOT-223. Copyright (c) Avic Electronics Corp. 1 Website: http://www.avictek.com @vic Ordering Information Device AV1117 AV1117-XX Marking AV1117 AV1117-XX Package SOT-223 SOT-223 AV1117 * XX(Output Voltage)= 2.5V, 2.85V, 3.0V, 5.0V Typical Applications AV1117 AV1117-2.85 Absolute Maximum Rating Characteristic DC Input Voltage Lead Temperature (Soldering, 10sec) Storage Temperature Range Operating Junction Temperature Range Symbol VIN Tsol Tstg Topr Ratings 7.5 260 -65 (Ta=25) Unit V +150 0 ~ 125 Copyright (c) Avic Electronics Corp. 2 Website: http://www.avictek.com @vic Electrical Characteristics Operating Conditions: VIN 7V , TJ=25 unless otherwise specified The AV1117 denotes specifications which apply over the specified operating temperature range. Parameter Symbol VREF 10mA 10mA IOUT IOUT Conditions 1.5V (VIN-VOUT ) 5.75V 1A 1A Min 1.225 (-2%) 2.450 2.793 3.234 4.900 Ratings Typ Max 1.25 1.275 (2%) 2.550 2.907 3.366 5.100 0.2 0.5 1.2 Units V Reference voltage 3 AV1117-2.5, 4V VIN 7V 2.5 2.85 3.3 5.0 0.005 Output Voltage VO AV1117-2.85, 4.35V VIN 7V AV1117-3.3, 4.8V VIN 7V AV1117-5, 6.5V VIN 7V (VOUT +1.5V) VIN 7V IOUT =10mA (VIN - VOUT )=2V 10mA IOUT 1A VREF=1%, IOUT =1A (VIN - VOUT )=2V V Line Regulation 1,2 VO VO VD 3 3 % % V A Load Regulation Dropout Voltage Current Limit 1,2 1.1 0.05 1.1 1.5 35 Adjust Pin Current IAdj IAdj 1.5V (VIN-VOUT ) 5.75V 10mA IOUT 1A 120 5 A A mA Adjust Pin Current Change Minimum Load Current Quiescent Current Supply Voltage Rejection Thermal Regulation Temperature Stability Long-Term Stability 0.2 10 4 60 72 0.004 0.5 0.03 IO(MIN) 1.5V (VIN-VOUT ) 5.75V ID SVR VIN = VOUT + 1.25V f=120Hz, COUT =22F Tantalum (VIN-VOUT )=3V, IOUT =1A TA=25 , 30ms pulse 13 mA dB 0.02 1.0 %/W % % % /W VO VO EN TA=125 TA=25 , 1000hrs , 10Hz f 10kHz RMS Output Noise (% of VOUT) Thermal Resistance, Junction to Case 0.003 15 Note : 1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line 2. Line and load regulation are guaranteed up to the maximum power dissipation. (18W). Power dissipation is determined by input/output differential and the output current. Guaranteed maximum output power will not be available over the full input/output voltage range. 3. AV1117 only. Copyright (c) Avic Electronics Corp. 3 Website: http://www.avictek.com @vic Electrical Characteristics Curves AV1117 Copyright (c) Avic Electronics Corp. 4 Website: http://www.avictek.com @vic AV1117 Copyright (c) Avic Electronics Corp. 5 Website: http://www.avictek.com |
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